ABL RS1 maiden launch failed catastrophically

RS1 failed to reach orbit during its maiden launch. The rocket suffered a significant failure ending the launch prematurely and damaging the launch pad.

RS1, the rocket from the Californian-based ABL company, failed at reaching orbit during its maiden launch. The rocket suffered a significant failure ending the launch prematurely, with RS1 falling back on the launch pad and damaging the Ground Support Equipment.

RS1 stands vertically at the Pacific Spaceport Complex (PSC) pad in Kodiak, Alaska. Credits: ABL via Twitter
RS1 stands vertically at the Pacific Spaceport Complex (PSC) pad in Kodiak, Alaska. Credits: ABL via Twitter

“This is not the outcome we were hoping for today, but one that we prepared for. We’ll revert with additional information when available. Thanks to all for the support.”

ABL via Twitter

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Line of events

ABL’s attempt at launching RS1 began several months ago; the first launch campaign started in November with a series of scrubs due to several youth issues.

A second window opened the following month with just one attempt, which took place on December 8, 2022. It ended up with a scrub at T-6 min caused by electronic interferences in the Avionics Subsystem of the rocket. The company stated in a tweet that the issue never presented in dry tests but only during live propellant ops indicating a thermomechanical or thermoelectrical root.

RS1 seen lifting off from PSC short before the anomaly. Credits ABL via Twitter
RS1 seen lifting off from PSC shortly before the anomaly. Credits ABL via Twitter

The third and final window opened on January 9, 2023, with a successful Wet Dress Rehearsal leading to the January 11 attempt. The countdown procedure developed almost flawlessly, and the rocket took off from Pacific Spaceport Complex (PSC) in Kodiak, Alaska.


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At an unspecified altitude, all 9 E2 engines powering the first stage shut down simultaneously, and the vehicle fell back on the pad, seriously damaging the pad and the so-called GS0 equipment.

The cause of the issue is yet undetermined; ABL started an internal investigation to ensure a safe return to flight.

The payloads onboard

Although a test mission, RS1 carried two CubeSats inside its payload bay: VariSat-1A and VariSat-1B

VariSat satellites seen inside RS1 Payload Bay. Credits: ABL via Twitter.
VariSat satellites seen inside RS1 Payload Bay. Credits: ABL via Twitter.

The satellites were developed by VariSat LLC and designed to work inside a constellation of three – VariSat-1C is already in orbit after a successful launch with SpaceX’s Falcon 9 – to develop new technologies to support HF marine data communications.

A series of failures

The last two days were difficult for companies trying to send hardware to space. 

On January 9, Virgin Orbit failed its attempt to launch to orbit the first mission to space from United Kindom and European soil. The issue was related to the second-stage engine shutting down prematurely in that case.

Extending the time span to a month, we reach Vega C failure. It’s hard to be a space enthusiast these days!


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Dario Scimone

Dario Scimone

Born in Varese, I am a Space Engineering Master's Student at Politecnico di Milano. Moreover, I also have the role of Board member and Projects Dept. Co-Leader inside PoliSpace, the first space-related student's association of PoliMi.

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